I've been really impressed with Semenyo this year compared to what we saw previously when he played for us.
Ideally, I think he would best be utilised as an Impact sub currently, I think him running at tired defences for a shorter period of time would benefit him and the team a lot more. But the issue with that is we have nobody else who offers us the pace and power that he does from the start, so unless we went back to 532 I feel like he has to play. The issue with 532 for me is the midfield currenrtly, if we assume that Nagy has to play on current form and likely Bakinson due to his deeper lying nature who takes the 3rd spot?
Massengo would offer energy and feel like he needs a role where he can harass and press players as opposed to being the holding player like he was at the start of the season. Think with a run of games he could be very effective but currently he's not offering enough to be given a run of games...
Palmer, if fit, would offer the creativity and 'x factor' that would be missing without Semenyo. Contrary to popular opinion I also don't believe he's lazy and felt at the start of last season he offered a LOT defensively and covered a lot of ground. Obviously then he was out of the side and we didn't really see that again from him, in a weird way I think he was probably told to go on and NOT press/harass and try to be in space for breakaways for when we won the ball back. As mentioned elsewhere think Palmer is reliant on players around him to be effective so Wells would need to play however the lack of width with JD injured would limit his passing opportunities and I guess lead to giving the ball away/taking too long.
With all that in mind I'd quite like to see a Midfield 3 of Vyner, Nagy and Bakinson. Gives Bakinson a bit more freedom and potentially he can be that more creative outlet with Nagy moving the ball quickly and buzzing about.
Think those 3 in midfield gives us the option to play 532/352 without Semenyo or 433 with him.
For me, I'd be tempted to go back to 532 with Mawson back and use Semenyo as a plan B. Think there is a definite player in there but his game time needs to be managed to ensure he's as effective as possible whilst on the pitch. Right now I see him as more of a winger than a central striker so to have the option of changing formation mid game is a big positve for Holden and hopeully he can find a way to utilise that, and Semenyo as effectively as possible.
If he does get a goal, I think he could blow up in the best possible way.